Color

#37d2f1

#37d2f1
hex#37d2f1
rgbrgb(55, 210, 241)
hslhsl(190, 87%, 58%)
oklchoklch(0.799 0.13 214.8)
Closest name: darkturquoise (#00ced1)Relative luminance 0.5326

Colors that go with #37d2f1

Charcoal, Crimson and Dark Orange lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#f15637

#37f1b3 · #3775f1

#f137d2 · #d2f137

Split-complementary

Open in tool →

#f13775 · #f1b337

#b337f1 · #f15637 · #75f137

Contrast

#37d2f1 as textRatioAAAA largeAAAFix
Aaon white
1.8:1failfailfail
  • AA: use #0b8199 as the text (4.55:1)
  • AAA: use #086172 as the text (7.09:1)
  • AA: or shift the background to #4f4f4f (4.54:1)
  • AAA: or shift the background to #333333 (7.01:1)
Aaon black
11.65:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #37d2f1 as the background.

Brands using this color

Fonts for this mood

#37d2f1 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #37d2f1
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #37d2f1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37d2f1-a2b6be-df4e7c-1f252d-e9f1ef?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md